Spatial mulitplexing (SM) or MIMO (Multiple In signal and Multiple Out signal) uses simultaneous transmit and receive diversity to increases the robustness of the channel, the use of spatial multiplexing trades this robustness for capacity as explained next.

In spatial multiplexing, each antenna transmits different data, so each receiver receives copies of different streams of data. A matrix is then assembled to relate each transmit signal to each receive antenna; as long as this matrix has a number of unique values equal or larger than the number of transmitted streams, it is possible to mathematically decode the data.

In principle, the throughput can be multiplied by the number of transmit antennas, but this can lead to confusion when trying to understand the gain given by MIMO techniques. This multiplication of throughput does not actually happen in real life because the channels are not completely orthogonal and interfere with each other.

CelPlan Technologies is pleased to present this free, educational webinar on "MIMO, What is Real, What is Wishful Thinking?".

In our session, we will discuss:

Antenna Ports

Transmission Modes

MIMO

Transmit Diversity

Cyclic Delay Diversity

Open Loop Spatial Multiplexing

Closed Loop Spatial Multiplexing

Beamforming

Multi-user MIMO

MIMO Channel Modelling

MIMO System Performance

SU-MIMO vs MU-MIMO

Antenna Correlation

This webinar is part of a series of webinars on LTE and 4G Technologies in general. Each webinar topic is different from the other, but the series is designed in such a way that each webinar builds upon and complements the foundation of the previous webinar.

The recorded sessions of our previous webinars are available for viewing at the webinars page on our web site.